and it's almost certainly due to some change in the marine environment. we can make predictions about how the animals are going to respond as the climate changes into the future. >> reporter: australian officials and experts say their effort isn't just academic but realistic and practical too. >> certainly climate change is a really big concern to us. concerned about antarctica because of the impact it has and the practical consequences. it affects the ocean around it and therefore the fisheries upon which we rely. >> reporter: some of these studies have been going on for a few years. some only a month. those involved hope the project will provide important information to help in the fight against global climate change. take nakajima, nhk world, hobart, tasmania. >>> time now to get a check on the weather. people on the streets in tokyo are watching their step as they get around today. meteorologist sayaka morery explains. >> hi there. on monday we saw very heavy snow in tokyo. because we are not used to heavy snow, people are having trouble walking on ic